Test which online OCR service fits best for your project: Upload your image, select the OCR engine to test (Google Cloud Vision OCR, Microsoft Azure Cognitive Services Computer Vision API, OCR.space) and then assess the recognition quality yourself with the overlay.

Support to create Searchable PDF is only available with the OCR.space API. Scroll down for a price comparison and privacy policy comparison of the 3 OCR engines.

Free OCR API Comparison Service

No images to test? Try these URLs for
English text, Chinese text or PDF scan
(PDF only accepted by OCR.space)

Load Source File:


Paste URL to image or pdf file

Select OCR Language

Image Preview

Image Overlay (click to enlarge)

OCR'ed Text Result

Price comparison: Google Cloud Vision vs MS Azure OCR vs OCR.space

Price comparison Google Cloud MS Azure OCR.space
Free tier/month 1000 5000 25,000
Credit card required for free tier? yes yes no (sign-up)
1 conversion 0.15 cent 0.10 cent 0.01 cent
10,000 conv/month US$ 14.00 US$ 5.00 Free
25,000 conv/month US$ 36.00 US$ 20.00 Free
100,000 conv/month US$ 150.00 US$ 90.00 US$ 5.00
250,000 conv/month US$ 370.00 US$ 370.00 US$ 25.00
1 million conv/month US$ 1,500.00 US$ 1,000.00 US$ 88.00
2 million conv/month US$ 3,000.00 US$ 2,000.00 US$ 175.00

Prices as of May 15, 2018.

Our opinion is: Unless you really need the somewhat better OCR quality of Google Cloud vision OCR, the most economical option is to use our free OCR API (Sign-up here) or its PRO version. OCR.space is the low-cost airline of OCR services.

Privacy comparison: Google Cloud Vision vs MS Azure OCR vs OCR.space

Privacy Policies Google Cloud MS Azure OCR.space
Credit card required for free tier? yes yes no (sign-up)
Images deleted after OCR? "typically" no yes
On-Premise OCR available? no no yes

Want to try out the free OCR.space OCR in your project? Sign-up here (only email required).

Try UI.Vision RPA, our OCR-powered Robotic Process Automation (RPA) software. It is available as free browser extension as RPA Chrome and RPA Firefox (OSI-certified Open-Source) plus computer-vision extension modules. UI.Vision RPA is fun to use - and its OCR screen scraping features are powered by the OCR.space OCR API.

Do you have an OCR API question? Please email us or visit the OCR API Forum - we love to answer OCR questions.